Command structure starts at I believe 15 as squad leader then progresses I think as you earn command ranks from there.

I have done squad a few times now and it is pretty easy once you understand the game and how each map works.Plus it is sort of fun,after having tons of terrible commanders/squad leaders,hence why I finally started applying to lead at lvl 38

Squads seem to link into the game seamlessly through the community tab in game,where it works sort of like the xbox live party system,not sure if multiple squads can join together but I don't see why not.

My main account for PSN is BoOchi777,I will link it on the main page and was going to ditch my valor on that account anyways for raven.

I was online last night, played out a few games, saw jonny2combz and joined his game but was a little bored with Raven v Raven shoot fest. I like the war objectives in the other games so headed back to those.